CVE-2026-26954

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.34, it is possible to obtain arrays containing Function, which allows escaping the sandbox. Given an array containing Function, and Object.fromEntries, it is possible to construct p: Function where p is any constructible property. This...

CVE-2026-26954 SandboxJS has a Sandbox Escape

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.34, it is possible to obtain arrays containing Function, which allows escaping the sandbox. Given an array containing Function, and Object.fromEntries, it is possible to construct p: Function where p is any constructible property. This...

CVE-2026-26954

SandboxJS is a JavaScript sandboxing library. Before version 0.8.34, it can leak arrays containing Function, enabling sandbox escape when used with Object.fromEntries to construct {[p]: Function} for any constructible property. This leads to Sandbox Escape with potential RCE as described in multi...